Insulator.



- F. SUHAUB.

INSULATOR. APPLIOATION FILED 3m11.190s.

f Patented Apr. 2'?, 1999.,

r l 1 l I I i I l particularly to those which consist of a base UNITED erlerne- Parnnr ocasion..

FERDINAND SGHAUB, OF JERSEY CITY, NEW JERSEY INSULATOR.

Specification of Letters Patent.`

A Patented-Ami av', 1909'.

Application filed January 1v1, 1 9'08. Seal No. 410,381.

To all whom it may concern:

Be 1t known that I, FERDINAND ScHAUB, a

citizen of thev United States, residing at Jersey City, in the' county of Hudson and State of New Jersey,l have invented certain new and useful Improvements in Insulators, of which' the following is a full, clear, and exact specification.

This invention relates to insulators or sup-` porting posts-for electrical conductors, and

portioirand a removable cap, between which two parts the conductors are adapted to be clamped," and' itis the objectoi my invention to improve andlsirnplil'y the construction of such devices and toI increase their strength and efficiency in use, while a't vthe same time decreasing the expense attending their manutacture".

In the accompanying ydrawing forming part of. thisspecihcation, Figure 1 is aview in side elevation showing the two members ofthe insulator in separated relation. Fig. 2

. is a vertical section ofthe device in assembled Aoi' which sockets are formed.

position. Fig. 3 is a planview of the lower or socket member. Fig. 4 is a plan view of the upper or cap member. n

Like reference numerals indicate corres onding parts in the different figures of the rawmg.

The reference numeral 1 indicates the base member, which is constructed of any suitable material, and is formed with a central bore 2,

and a shallow cutaway portion 3, The bore 2 at its upper end extends into an approximately-conical socket 4, near'the upper ends a plurality of slightly curved, wire-receiving grooves 5, throughgwhich the electrical conductors eX- v tend, as indicated by the dotted lines inFig.

3. Any desired number of wire-receiving grooves 5 may be formed inthe upper end of the base member 1: for instance, two such grooves are shown in Figs. 1, 2, and 3 of the drawing. It is obvious that one may be used, or three or four, or, in fact, any number that can be accommodated upon the insulator osts, and I do not wish to limit myself as to t Itis also obvious that the grooves may vary m'slze, as shown 1n Fig. 1,`wherem two dxierent size grooves are shown, and

which are adapted to receive wires of different sizes f The upper or cap member 6 is formed with anapproximately-conical, tapered, orA belltioned shaped expanding lug 7, the small'lower end of which is ada ted to fit into the socket 4 of the base mem er 1. v`When the A electrical conductors havebeen tted into the grooves 5 of the member 1 and the cap'member 6 hasi, been'fitted into posit-ion, the ex fandinCr plug '-z 7 serves to kink or bend the e ectric'al c`onductors outward in the' curved grooves 5 and to hold them firmly in said grooves against displacement, either longitudinal or in anyv other direction. The expanding plug 7 preferably is circular in cross-section so that it will readily fit down into the socket 4 without having to be turned to any particular position. For the purpose of holding the ca 5 '70* member 6 in place upon the base or Socke r member 1, an foryholding both of said mem; bers 1n position upon a suitable support, an ordinary screw or other device 8 may extend downward through the cap memben and "7'5 socket member 1 into a support such as 9.

The characteristics and operation of my device willbe readily understood from the foregoing. The base, cap, and securing bolt' are assembled as shown in Fig. 2 and the conductors disposed in the grooves provided. Upon screwing down the securing bolt the cap is drawn down upon the base section and the conductors 'forced laterally into the iproper position in the grooves by means ofthe conical section of the cap. This grips them irmly and prevents any longitu inal motion thereof which Would be apt to chafe or injure the conductor. The cap, as will be seen, is symmetrically faced and may be ,QQ .prcperly termed universal fitting in that' oes not require to be placed in any parl ticular osition upon the base. The plug enteringt e recess in the base causes 1t to be? self-centered and the symmetrical face of the j' particularly strong and durable by reason of the fact that substantially all of thei strain placed vupon the members in grip ing the conductors takes place in a lateral irection; that is, at rightfangles to the bolt, and there 1s no tendency to split or crack tlecap, as is l'lt conduc- 14S-t grooves are provided in the base porliable to occur in devices previously known, and this will be found a very advantageous feature in use.

It is obvious thatmodications may be made Without departing from the spirit of t my invention, and I do not intend to limit myself to the precise construction shown.

Having thus described my mvention, what I claim and desire to secure by Letters Pati 1. An insulator comprising a pair of members, one of said members having a socket and aplurality of curved grooves, and the other of said members 'having an approxii mately bell-shaped expanding plug formed with a flared upper end, the lower end of said expanding lug` being adapted to iit into said socket, an the upper flared end of said plug 1 3. An insulator comprisin a pair ofmem- L bers, one.of which is provi ed with a iaterally curved conductor.- recelvmg groove or grooves, and the other of which is adapted te torce and hole securely the conductor or conductors in said grooves 1n such a Way that angles tothe direction i the members. 4. An insulator comprising a base portion having' a vconductor receiving groove. or grooves, a symmetrically-faced universal cap adapted to cooperate with saidl base so as to i force Vthe conductor or conductors laterally of movement between into the groove or grooves and hold the same securely in place.

5. An insulator comprising a pair of members, one et said members having a socket and a curved groove, the other of said members having a plug ad'a'p/ted to fit said socket and being symmetrically-faeed so as to cog the strain is produced substantially at'rightf operate with said first member in any posil tion and hold the conductor securely, and means tor securing the members together.

provided with a conductor-receiving groove or grooves, a tapering socket, a symmetrically-faced cap provided with a tapered centering plug, and means for holding said cap and base securely together.

in testimony whereof, I have hereunto set my hand in the presence of two subscribing witnesses.

FERDINAND SCHAUE-l Witnesses: y

i EDMUND T. OTTO, AXEL E. FERLow 6. An insulator comprising a base portion 

